Resetting service engine light

Okay here is how you clear the service engine light which is meant for the engine oil change reminder. Turn the key to the ON position without starting the engine then push the gas pedal down rapidly tot he floor five times and let up. Next turn the key off then start the engine up and the light should be cleared you mat need to do this a couple of times to get it to take. Mind you this will only work for the oil life reset, if it is the "Check Engine" light you will need a code reader/scan tool to clear it

Please let us know if you need anything else to get the problem fixed.

Cheers

https://www.2carpros.com/articles/oil-life-reset-ford-explorer-2002-2005

https://www.2carpros.com/articles/check-engine-light-clear-codes

The battery should have had nothing to do with the check engine light, unless something was disconnected. It will need a diagnostic code scan, If your onstar is active, they may be able to tell you what the code is for, but won't be able to clear it. On the battery issue, have you thought of having a battery tender installed? It is a low amps trickle charger to maintain a battery during storage.

User atest light to check EVERY fuse in the truck, under hood and in the interior. The diagnostic connector is powered by a fused feed. That is probably why the connector wouldnt power up the scan tool. Should be "cigar" fuse 15 amp in the underhood power center. The you can scan it to see what is going on

Hello -

To better assist you if you need to get back with me, please tell me if your model is just a Escalade or and EXT. Also the engine size in liter and the 5th and 8th digit of your VIN.

According to the manual you can use both but there may be some difference in the codes. I have attached that info for you.

SELF-DIAGNOSTIC SYSTEM
ON-BOARD DIAGNOSTICS
PCM is equipped with a self-diagnostic system which detects system failures or abnormalities. When a malfunction occurs, PCM will store a Diagnostic Trouble Code (DTC) and, in most cases, illuminate the Malfunction Indicator Light (MIL) located on instrument cluster.
There are 2 paths for accessing on-board diagnostics. It is necessary to access information through both paths, as each path presents some different information.
"Â Generic OBD-II

This provides all generic codes and some OEM codes, serial data PIDs required for generic OBD-II and some OEM PIDs, monitor status, pending codes and freeze frame.
"Â OEM

All DTCs, all PIDs, failure records, enhanced scan tool information and all other OEM scanner functions.

Check the 15 amp cig ltr fuse in the underhood fuse block(left fender). If it is blown, before you put a new one in, check your lighter receptacle for conductors like coins, gum wrappers, etc. This fuse also powers your diagnostic link connector. There is no on-board diagnostic provision on your Escalade, a code reader should work fine.

Hello -

Thanks for the info. I attached the pic of your DLC. You should be able to read codes from that. As I said, you can use the one from Cadillac or the other ODB-II but some codes as the manual said may be generic. There is no onboard.

gstacey also stated there is no onboard.

Hope this helps. . .. . .. . .

It could be a just a loose gas cap that caused itto go on. But this is still under warranty if its an emission problem. Take it to the dealer